On the SitePoint PHP blog today, there's Harry's opinion on telling "when PHP5 is safe to use".
The answer is very simple - watch John.
When John migrates, to me it means two things in particular;
Don't believe me? Well the short proof is John's company have their future riding on it. A longer proof is to take a deep look at the code in adodb which is a great way to grasp John's mindset / experience. Otherwise browse the phpeverywhere archives...
- If there is a performance hit vs. the older PHP version, it will be an acceptable one.
- There are no show-stopping bugs.
It's an interesting standard to set for the adoption of something as beneficial as the move from PHP4 to PHP5, but it is one way to judge the effectiveness. When you see the major applications tailoring their setups for PHP5 environments, it might be time to consider jumping ship yourself...